{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x9282215855493a2fb7e4051a97b6ed6a3cb0a9c8f5ce604fd4eb4cc30c7415bf",
    "signature": "0x6c3397c0bfc462b107ec96049f17854b9b9522f55622c5b04f065f018755161220881b78275e4f2bd230cf7408ea0422624f590658861abe0ff719b46cc1eadd1c",
    "signer": "0x930AaCc168c71FC3e0De7B5e09D45A9FEe2A231A",
    "userId": "457515145"
  }
}