{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "735980234",
    "entityType": "User",
    "nonce": "0x81ca763e9e85634c9d565e0f0e0e8d37280028eb73841ee23457cfa1b7018711",
    "signature": "0x4a8c769f5157deefb5ede9d9f10d22510c209b26b5a3016cca0debcf5666e0c805d172b306b3b4f97ded6511b2b0c674dc16e2a117bc5cd010dc62c86e57704e1b",
    "signer": "0xf1b266FaB316100908263c082e562a5B847A0384",
    "userId": "575269234"
  }
}