{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "916206761",
    "entityType": "User",
    "nonce": "0x663ae8e2dee0b11c1f70d405523d47be1149d60d5d45f7a6f5ad211f24a24028",
    "signature": "0xe571f308813f6b94045afaf59d38c20f801a2ff74baafe4afcb695aa0d6f68e109646eb87b82e0862fd2d93f5ae0667606db6e351fe8c79629bed06c54ca1db11c",
    "signer": "0x9149C438b2FBf68d0e846EEfE2E6B19be686Af42",
    "userId": "843"
  }
}