{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "584616263",
    "entityType": "User",
    "nonce": "0x6a4e4b689874c72e7f91ade18eb452713e5f0688f7a6c63fedf72fc54cc55ad2",
    "signature": "0xbd331acd41490ee4c6416e1dc5a1aca2f3a8671fc98b04e2355d4ddec7a7742540c436845ce92581673d402113619167fdb366abab5cda578ca2e0f2a98da2301c",
    "signer": "0x0d0E0D19797534AEF52736C60B52793E9f88e24F",
    "userId": "603294620"
  }
}