{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "195138",
    "entityType": "User",
    "nonce": "0xdd15074ebe1cba18ae1116eea2ade779d40e6221d3688be048af1f75aa577aa8",
    "signature": "0xab896b2c5ca7bb65a86e4835a881b329c4044b033b0efb4a844e807c16a52ca8328eccc0cce51deb4bb5c89bdefe1435a26a30b20be004fc537c37da8e78d6731b",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}