{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0xeaecdc52f25c4c5aa8cd64f2a14cc984c492548b89f9ffd78ee46255c03afe8f",
    "signature": "0x437f0102f6e67815d7687dd54efb9a77f41c6f1dfdc6ced273275f688717c0a33ed039814cfa80245c30bd3f44f2e4ee4c67d9dfaa20d479e12f8bb3cbaef9eb1c",
    "signer": "0x2ACda02e37Db2DC08f82aEFAB268F0610974bb3c",
    "userId": "416239376"
  }
}