{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xa74dbfee1d822e0dd1859d50b2efed0202132d5ca2c9076afda322809a0284a1",
    "signature": "0x34376e41103473dffb3983fb99e4568a1f6e4e6e35a9d75f9f858a631a1b44ef674da116bb1f4d646ee9271fcbd3dcb96e8d41560ec0c55667c931547d476dd91b",
    "signer": "0x84683b76111c0e04b93499Bdd6801f25531DD5b2",
    "userId": "98061637"
  }
}