{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x9f05a15f1e5e553ab6a86eb63d8f0f6594ee879404ac94b215aadfec1a86cf6a",
    "signature": "0x4acd7e956cabf30e3f5323976e6df14cccfb48545e84614039cd6b5d41c17d3f0fd079524cfbac586d62093a276af591f3aa39a5e6b720fdbbedcb085882ce7e1b",
    "signer": "0x1a84686556C7a4C2C56C7c5B583f5c953ea7a379",
    "userId": "49379001"
  }
}