{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "389234186",
    "entityType": "User",
    "nonce": "0x096cb35a22912e0c50bd1c3ee86129d1f8d253b355bc9d3e9ad287fc2bcbde09",
    "signature": "0x3b88cade12a90343ff4deae001cac86e022065089d221a0573ee9c6e22f90edf428878ffa50c389cf6d63965d0acd5c2daebf01b6ba8c3e37f43934b9cc549011c",
    "signer": "0xa3C91a44f620f0b95468bEC359f89edb95AE3cdC",
    "userId": "904405512"
  }
}