{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x4ffc59ae2a654881e2b027ef2f2e98ffcdbae593f947a08af91bb7c8116bb56a",
    "signature": "0x65137f8bf9cb8309eef4c2f2c276a1eebfdd30690fe50fb523b27ac07199eef97f0b27d3d5de061ce195b1bd9a2057c8ee3a797855ed1d3db95c6f71e1f435ed1c",
    "signer": "0xaB725a03E95f93A28F19FA8AF1f6da37633c2E5B",
    "userId": "130848719"
  }
}