{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2015258",
    "entityType": "User",
    "nonce": "0xcf02892c89849df01e388db426ec1826e0ab122cc1fd906ab60459bcd6bceb95",
    "signature": "0x190e1bfee1af6f197868ec00cc613b564a6e1e3d0615f51871e26635dabf40a779d2426597569f01e75ade6c839a1b70e7b07f3292dd18f240ff49829dbd721e1b",
    "signer": "0x005385507D169DF7Ad14f23b728248Fe5464Bc26",
    "userId": "303866152"
  }
}