{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "397536135",
    "entityType": "User",
    "nonce": "0x74b50defa27048ce3dee7b525a6ffc9ab1b38388e6f5b523cf7faaf76af89a7c",
    "signature": "0xe7b46050040080a7fcbee3f2b4e0b31948267172a694a03ece4d8cfe0d58c2326d604c05e6063d13845b614117c20c1a1c475175384942772c8fc2f6b0692ec61b",
    "signer": "0x36d29AA5C780341f3b35bDE6c1411a7Abcf8794C",
    "userId": "571117272"
  }
}