{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "304051",
    "entityType": "User",
    "nonce": "0xd704b33e400d19cdc41c3ad453e3efeb7e36b606abe04fe473f152f5104fe2d2",
    "signature": "0x68e5cff5a395240f59200db59d38efec7eac7c0da77f27c37deffb5481d15b1f2ffa79e76ace47209d178fbfb6be716bc397d5a4c8ff455effab51608ce7327c1b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}