{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "708077815",
    "entityType": "User",
    "nonce": "0xcd3d7b5dcfefcbe5227b2558d2ebd3ddcb2599ba0e7ab42169e12a3d67fd95f4",
    "signature": "0x6d6bfe3353445e6abe28863008faeea91e0a5b36786b149a3160eba17b060dfd77e72d8a6bb805b77f59007c2234c4057e87a6dbe4e3945a5d232b009f925be31b",
    "signer": "0x5fa60F185681545769de01098bB8F29cfbaE3cF0",
    "userId": "489026160"
  }
}