{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "5642",
    "entityType": "User",
    "nonce": "0x9ec929b93fbf2a5fb84bec6264656d0f97ba075c64efceda782047fbc003368c",
    "signature": "0xa94e4a303ed0568e3de18db1e5c2f7f402137899f9eeaed1435517a5851edbb631c17dc6c0c209a8a68bf701cbe3ab96e5109e9c3cce8e7950f5b9dda80a81b51b",
    "signer": "0xbbB98413eB671bb0000F0b18A2A7Cae9631043E1",
    "userId": "98311147"
  }
}