{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "545463120",
    "entityType": "User",
    "nonce": "0xbe8104955dc0221438c04b7a9bb39d60e6c7461607b7b708d9c81a07c9b61723",
    "signature": "0x4e4412ed46119e00559b12bd99c98e96e9c46801ae232a1f21cd7be89205b2de4e81897a0b6039ce8216f525a7af0a0246f71c0d6f9d7b3bf9079b3af2c7cede1b",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}