{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "499027608",
    "entityType": "User",
    "nonce": "0x4160c50a7989a2602c22460bb57a406a999d5c0ba644342b46680dafe180e031",
    "signature": "0x1bb9a18c833fa611a26a265011b8ed97851c6661e59e0ef12ca415dd58e5efb60169703fd47f7e197be161cae10f61c041b4d8b9a221cff0c0a63240504daa131b",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}