{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "203752",
    "entityType": "User",
    "nonce": "0xe11eec1ba5cb5af8b7761cdb49b9391be83699ececfd4d9c79bc34739c0fc3b7",
    "signature": "0xe275d6590990f5b01ca6e95629e20c2c24b407ffc35ad76d11a774f7340c60b65753120ab66c4ef472f639130a5b4f2aa569b222d18185904e6111ec864262b61b",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}