{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x73be2adf352473dbe215d3ed2aed8c70c48740a01ae5dedd518bf9187cb5db52",
    "signature": "0x27c4d29c323250917fc37dece13c4dda3c6db2c356d43bf4d2c586212454b5c656951eba5a0ab815fc1f118cd723a4d35de2b606fc4e8186902f2d876f23be5d1b",
    "signer": "0x685A062036d83f4814165Ea477297c803808E491",
    "userId": "859769261"
  }
}