{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "75591",
    "entityType": "User",
    "nonce": "0x50ba8aa6f23b736fd2b9035bc034e9f23f1a4c2b2900a34798f08a8484fa5ea3",
    "signature": "0x9b9bf696c91ca694e92268299ecd3c82078695bf1a0a23f7820e86f63d6a593b7f152659c76ac7c66adc2d9e7376d834228748c00dc9056443077d75bf01111d1b",
    "signer": "0x36d29AA5C780341f3b35bDE6c1411a7Abcf8794C",
    "userId": "571117272"
  }
}