{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "43295",
    "entityType": "User",
    "nonce": "0x200438cd2f01b38cd5355a3058b975fd5aed6223062fdd92e78069920f74bb61",
    "signature": "0x4d6bcf3c9f66b267cdf4cbacb1c542fcc39c2e65822b3811cb6d6e7626fe4d1052ab8345a517e5522559dbf8da788dd3b371e3218f9b1fd900d5ec85c565c0b11b",
    "signer": "0x34F50BD1d16FaA0390f6037c86b7D52Ff6629a25",
    "userId": "739630124"
  }
}