{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xf556c053d091bdb87ee4c6bac9027058b01a57cedf0a65d3d24bad80777d333a",
    "signature": "0xd3a76783fbb202326a703bb19e8914bcd68dd1c065f31bc5fe0a6f79bf47ce1156b03557a89fc4683b01fdea26facea66540e6ebf23641e193f186ad9b72708c1c",
    "signer": "0x3CEEc2BaA5d04bE3Cc32668FdffeF3dEd5438568",
    "userId": "803609780"
  }
}