{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "535614224",
    "entityType": "User",
    "nonce": "0x5b0ae7b98067669aada9adcd7834a6f04abef2045d2e7a95256eec626c6701da",
    "signature": "0xb580931a1585fb3f238fc1238a3026fc84aaa2317a2b42b02bd8edebf3eb311c04dae973d5ac01c65d096bdaaa28ea09276fec0667ae4ec8ec4f07411a81c5ff1b",
    "signer": "0x102a924C1c076Dcb5816d20E32Dcb6F00e75F2C9",
    "userId": "485987672"
  }
}