{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "20",
    "entityType": "User",
    "nonce": "0xfe68450299559cff177fa12080a65f02d02afedc23ba447b5ae4a314b5adb244",
    "signature": "0xfc8e9cd118e5b4c4c80b279f6da332677cd0aa44b0a472a1594d479c8b90b185795923348be09e217657ee4501231fc28569bee748392cf6ffeb10b20106feb91c",
    "signer": "0x9698A898Ed554B831a7BB69972E1B05eCC560430",
    "userId": "967510490"
  }
}