{
  "manageEntity": {
    "action": "Update",
    "entityId": "299050587",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x93e86289e572ca5a566a44d4bf960d03ec375a6dca76460e4824df867dbf14e2",
    "signature": "0x238f27a50b49a71ab989db82c02bfd526b7dfc035571e67648ec3e2b1f75866822ac12be8797ad8aabc3fc25feb0941cb5cc38161993e91145724fc3a93d386b1c",
    "signer": "0x0c0CE74bBA15600974758A2751EAcaF4f485464a",
    "userId": "299050587"
  }
}