{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "240266",
    "entityType": "User",
    "nonce": "0xd2a0a2bb2d0f7830f351b585ed34f3f48235932e37ac5dd261738f3970cfd183",
    "signature": "0x7543e3a60d1b8d813713acec1e2c288ad6626ffea92432a906e831947af0b3d9287b3bd987f7b9c62c1bd840d23043d6e8700bce6136e36ef406039b3cc83ec91c",
    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}