{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x26d7aeb81b193ac558e89e2f40265a7e12607cd65ffee6e05b7492a9093f3cae",
    "signature": "0x338905b9b70c48c896d2a922cc4c7c7b503489f2d0714baf3df0822d13a8323430bbdc6ea124f2dd541cafe6a76aa61518da9ef9a164e39f7778e178f3689fe61c",
    "signer": "0x303474a52E301Be9e4641439FC0b3A8C471B1d66",
    "userId": "595883218"
  }
}