{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x22734fb27a7ff0109a8bb9f25f5edf45041aa266f94bfc2e2b520ec535915621",
    "signature": "0xb9bdf3b5bf41bef12448ef59ae9827c17ce899a7ce048132e10d04f737d869397e8541858991ca0cd6f722e471468ea111225d0bde4d071584eea7c129e9a7f91c",
    "signer": "0xBD1AA1CB8A781617BD7C254d61fC111e97ac2531",
    "userId": "119496804"
  }
}