{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "20",
    "entityType": "User",
    "nonce": "0xacb8b777ed0d8bbb565d8c936d17755f9fad8687c891d58d97ed50e3621ed7c1",
    "signature": "0xb193ededd1667bf12d6fe88286a28874ee7bfa453be32b49838ab9a4f6d387d028650597bb5bacca489771e6dcd0f93d70fa64f76c743e78a181bc0bc469d8761b",
    "signer": "0x995Ca8f2d3956487967aCfd7EA849313C448c3a8",
    "userId": "227564"
  }
}