{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x21cfe7bc807948ca2956eeefc2ff22041ce81ad8afa11ab084bdf1f5b5057352",
    "signature": "0x311d3922b72d284d2a98271ca1940ce5de40c9cfe1edd87b2c4c3a09b80eed147c5a2790948030c883acd02650abf3b2f20c438c7a4512cc37d84b5add83df721b",
    "signer": "0x58A3eb1b3C9EF9b2FA599C2B465EE50183253a33",
    "userId": "35164263"
  }
}