{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x931f9bdfd473099a94c4495bedae9f4017f4b940c98ccad3a006634ab0d8afb7",
    "signature": "0x1a5d4b3ac98f4b4ad033ff7d21eeadb51bb4ceaeab4b427993234f183e81283f22832d52a6b9138cb8e56199d3efad9db83db46e572b96955b53064fe1b0daad1b",
    "signer": "0xd01d11eBc5774FDb0c3d0a7c270b93E6F4ec442e",
    "userId": "488933964"
  }
}