{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0xa35f667d8aab4f95675a7d91ab51e74ec68418932b2f88ff2bebc852872d40ad",
    "signature": "0x4b98859366dd6f1a90289b4a189d772c1e46f3948d035d033d65c0ddeef6503c3d339cee666b6dd3aff11d8da22cad3611ac736b44100adf7b597830f62897b71c",
    "signer": "0x3eB2456E017b5679f587801336BeE9c0Ad251858",
    "userId": "393411353"
  }
}