{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x707f9e105e40ade7b355633b2189460857706a36c47910e244e569cbbc9201f0",
    "signature": "0x7e94e039db45b4ce0a0c10e541af5bced0fdec9681fcbf2edfecdd33da825abf589f2e1ddab5143b203b74f14963385bdb88069d79e7f99853ee1d9868e1ff021c",
    "signer": "0x6a1eCc7128689c85Fc7aCB2BEf73235E1C4d1B1c",
    "userId": "433876618"
  }
}