{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "411344930",
    "entityType": "User",
    "nonce": "0x00f4ed554b85cc4c89d5be780adb1da84deb6644ee4c7ae362887a6f184deccd",
    "signature": "0x0fc62a0699bb734a6f414483081290173bbf18d4384fc9edb3c568f13aba1c5c6441aa534c4f2192ea9f52b738d0ce3023c31941d5c43193328ed491a96f75241b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}