{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x1d2adddb4ef3e6f4bb64f8f920241a89a46af8fd95fa21d856ea62eec4ef39a2",
    "signature": "0x03fd29c31d564346b267b64d64815f0bad55d1c57dc38db7eb3122f98a15a11734e8f34701c38a8ed1a0645a89a5a6e9ddb1cf24e98263a02fa39b48bd1972781b",
    "signer": "0xaf18bF4a2a2c49A50A8Ee5bE0a227FF7577E4889",
    "userId": "153639946"
  }
}