{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "5642",
    "entityType": "User",
    "nonce": "0xb805546165eb2c9b9f5dd00fc240fb53e9cd0d02c58522b98a126dd583f42e87",
    "signature": "0xcb8155812abf8f245f03c9738bcf546e4519dbebf46db0f42d1f37852500002e70c0ed3e2aff6219ca96f77631fab22c8290fd2594984b34c58a131611e234d01c",
    "signer": "0xC56E1ccbA93c1E645e5F27Bf8A5ca13eB7A5eEbe",
    "userId": "335878078"
  }
}