{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x025ab850ddd8acefff510dcbeed134ae165d3abf2aaff87bfa633228480bd1c0",
    "signature": "0x081ce12fe922acd7fa9e29fcf2171b6d9f098e00843fce7534a6b2035e79505804ed88bfd0e135731a0a4a2380872feec2a4b6cde1d812db8bbfbcb606ea5eb41b",
    "signer": "0xC4D477a19a7CFF9D89Ae357CCcCfc56E0081a7Fd",
    "userId": "305887580"
  }
}