{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2001065",
    "entityType": "User",
    "nonce": "0xa7214e763a38eaabf91e68deaa2ae7bae52e8da1d03623c4e96e6deda7ee851a",
    "signature": "0x5450f0be75fbcbc841f65663733752dcdf0591aada406d7d563c5fbc10aaf9c16048a21ea73823a6163520e94451e010ac0b3f9055d6ad5b9e9b2f18904d2a981b",
    "signer": "0x90d627796C9E2071AAd9F8C20f6dCE95587F6d13",
    "userId": "560619378"
  }
}