{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "755516",
    "entityType": "User",
    "nonce": "0x9c2749e3d49165d175678eb5eed35f8fcd6347e9f8cf0643d19c2122fa643e0e",
    "signature": "0x60aab6297687d3260f021b14ac2cc65b7274f85da5177972a54d0fa3c8d5199474d72a894d15ff111132a61da1967aecd783b3030499b6edbe837900fbcaa6401c",
    "signer": "0xab97052A857D6227f6165BAc2708432a46C287fB",
    "userId": "159597058"
  }
}