{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "56",
    "entityType": "User",
    "nonce": "0xe5cfdc8f9d57814ba0802270d648fe5cb486a3fb5aaf9f4f8ad2c6eff4a514ae",
    "signature": "0x2f602c36f05a513c6cdf0307ed165eec4af10778b4451ef0016e006a20cc44de422fb5516d91e2977a029bae44e858add85c8e75f4320f050a2ac54f929c26311c",
    "signer": "0xe8533DD8DC48B11EC063191b0ab1C7CBD9C17662",
    "userId": "318238731"
  }
}