{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x35c7f74e0215808aef4b708fe65c7af57d7cb4e8001b7b6af39f4e946da8f746",
    "signature": "0x58e9ae4b0ccc679b6e17884da7037fefabdc70b9780870051629919a3532da574cae70ce0e0ab265bb1dae2f95b0d7c72d08558a6496256c66e735d8371cb4411c",
    "signer": "0x65d8ef61B1DD2f9C26123B8fA2351F9BF84611bc",
    "userId": "35972053"
  }
}