{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "388127",
    "entityType": "User",
    "nonce": "0xa1f20ad21b2e5be6aa1bf9668d6ec0813b4f454f8368127f7a6959031602ff17",
    "signature": "0xe0bf05a8193cb9cdd50d93b4ac6654d7cce72baf2bf4b1bfc911c12413e5d1d01cf277ba2012ea1f917df549c12d3e987d2b190e8a3483a35233aae3589a4ed41c",
    "signer": "0x14fa63A530B7d9254d20B110AAc25ABF49fbfa9d",
    "userId": "182428"
  }
}