{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "106406",
    "entityType": "User",
    "nonce": "0xe1fc0b1277427aaed80c77e6e4fc11f50cc12a9c4ad002f44772171be7feb8c4",
    "signature": "0xa99b7a86bcd777e3a28d2ff04f02da57b9a32db5d357f16fc26eb87cee0c68f95cc4931f56ae72f2f707dcd6163831349751fde9a0b33b3997bb805eb43fb8c51b",
    "signer": "0x4D8EDeF47b57f98c89BDFf851267B0327BE4cD05",
    "userId": "5307724"
  }
}