{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "190942",
    "entityType": "User",
    "nonce": "0x7c7c7b35c18ea0323a6711acb68c2e4befb56ae61f352baa6f8ffba6a97fecb2",
    "signature": "0x74f6e018094682d5d88528ffc4f890539044ae6c5bce259a9e40a419bedb8b2119cb917da0e5efd18c0aa92fc9b7082960aef51253c1a18fed170523e8f2e9c21c",
    "signer": "0x250BA5492e75e8e9a4D09C6cDE8D09f1B7dfA3d8",
    "userId": "831474008"
  }
}