{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x72674c92ef87b847eb6a8474889a1eeaf06bfe8edb5ff1580af7b05feec32ee6",
    "signature": "0x856f5a7ab91f20601a24348a931192c90599e62db96c9d46ac5372ddbd5e07855fc4c7ada922255ab651ee3241dbd46cd980283e0313d014b30e97fe656544d81c",
    "signer": "0x989faEfE658E0b6dF1793197b0De4137Cb1aDD3b",
    "userId": "554920508"
  }
}