{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "390576",
    "entityType": "User",
    "nonce": "0x10af2cff0a333c24a8246246a7077912d5c2d294a60001e8e50c2a56ecad70e4",
    "signature": "0xe1d728ea86a5ba0f0c6000d38c6531c3be4d62f804658803e94310deba5f029556640cdb60cd3139a515dfbb5dd9ef70255c1d10f23f730a4efa880e4eb249b31b",
    "signer": "0x292eF57C1FAAc86008ab58D5116e0ba424C9189b",
    "userId": "721084704"
  }
}