{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "180446",
    "entityType": "User",
    "nonce": "0x85fb87d8d59656382be1fad335a12315a28be64947d7391d63ddb3d6b7c76187",
    "signature": "0xa152ec1c7d1c8ae165c2d136f69c9bc628a710ef11083020c032df9cca625f7d4d46c57d3a1260722e3a58968bf3bbac23fa088c8a3779e07316fb761ef2a45c1c",
    "signer": "0x243A439c272133AEEE0073AF4986dE391C430866",
    "userId": "77551267"
  }
}