{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "219883",
    "entityType": "User",
    "nonce": "0x849998a95deeecef4f902d246c085a696b41ad2ac6214811c192222af9f1f754",
    "signature": "0x114810e76563293dc14b980d3852b3a612995cb10132d64003ad47506e04f50f714f9a298face21fb983cf8a736effdfd1fc22ad57ddef48d84da4859220fb111b",
    "signer": "0x9765cbE8e26a2c6c4847C1B69ABeB0B5250EC254",
    "userId": "678556080"
  }
}