{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "155117491",
    "entityType": "User",
    "nonce": "0x1240bded87f303bee646b52ef02210a226764e7236bdb22463d9409dec67523f",
    "signature": "0xd7bb1ddf21391bec0c48d7980abc81b67dedb27b8490ecc9044e91339ca99104698591fb9f8cf50ea2e2f12a6d1cbf9fef82a6362df2edda79fad8f3f39236581b",
    "signer": "0x9149C438b2FBf68d0e846EEfE2E6B19be686Af42",
    "userId": "843"
  }
}