{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "720903941",
    "entityType": "User",
    "nonce": "0x682ba8c5261a7988352377fe289a1f93dc1c3e6c81eb2cd8773d99bfc2a3018c",
    "signature": "0x850cb969b236ef6c2943f89b27154c39002f3d3d854430581b2306256294f40a4fec57fd92935cc03d77749e6c6115a3a19ec9109447fe17929a8de6a4ba62dd1b",
    "signer": "0x793bbEFbb3Cf1e6529B90296e502145aCcCDE8d6",
    "userId": "838777725"
  }
}