{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x0e60436c048f29e512453084a17ee7afa13081454044b0ff02096d6e3882a414",
    "signature": "0x9995e7dc859dccc4b9568c6ba9ba6c4d1ee515c60d60ee0fad956436e80a3aa750b5b57aaa5d1b08f40176c18f09046bdac5dfcf55ce28d39f7d6d7820dbc02a1b",
    "signer": "0xd19d2E8872f63541eF1e0afE1c2F646DF9Fd5A38",
    "userId": "986740871"
  }
}