{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "54545",
    "entityType": "User",
    "nonce": "0xe26297f1598b6fb202a48f2f6f53ff8ff8e2d890777b316a253dcac95b56867c",
    "signature": "0x3dad383d9ae7d45cb75d76cf4ef822b64453bba5af43173e120717e5967ebe01268aeb3e9a403e619fff52cdf8243fc1822af27930fda3388b6b9f61a4329ec71c",
    "signer": "0x07691D0C34E03020A13BE4B5a411B64CcFff5556",
    "userId": "9014"
  }
}