{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "54545",
    "entityType": "User",
    "nonce": "0x282b5c20d3a4717d5aec37121ca4760d09befff071c530fa41174658e79dd031",
    "signature": "0xda155e05bab78e9d3e667b7fe21b8ac0b5e9a527d723ae9db663cff02d7904557eb7d94707adce5dfd8abf3b0ede4a117988559d59b24707afb1f180b7905dcb1c",
    "signer": "0x7094144C776594790B5E922D084562dB60549BD8",
    "userId": "602217700"
  }
}