{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "708077815",
    "entityType": "User",
    "nonce": "0x973cc5cd400d9562acc54d68c6cf8069fa7ecbf7b2488ce4cc46623704c0db9c",
    "signature": "0x7037aab56cd247658b0b19487226f97fb6b8eb25b9ff4bf933feff813e603b4734627662789c033923d38aa41bd2fb15bdf18e52fc8458c8a516af7e31c9b2951b",
    "signer": "0x0AC77876338a1310E24e939DC65C28Ae87A0D298",
    "userId": "415577056"
  }
}