{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0xbb5222418b3dfa3295880d10cd8d94d9e8a3b6968ef91341ff218c7b8f06d76e",
    "signature": "0x1444ac282765f882220cff6a18c91ac8c364f70510c94f471d0cc31802b351662ce084eca7f6a72709cc5b62f8ea8d0760e970be907995b12033708fb39741721c",
    "signer": "0xEFAB3332CD5EA33e9817aa57B32CaCb8Acf973A4",
    "userId": "407216161"
  }
}