{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "791780107",
    "entityType": "User",
    "nonce": "0xbcaf3bcd88e5884c036bc6c50ac162fd139806137c710366d777b09d4ae7141e",
    "signature": "0xc7a958cc33397ad97c9f3ac254b2914f172f8c1fca324926e9408822a2ae3d74002df1ee1fce90fcbe2152874eaba901dbbce8d0214081d73eac7a795b7eeb651b",
    "signer": "0x639B9598C075dEDFE2d8FfB1B5B6ca259D3C425E",
    "userId": "667809204"
  }
}