{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "157893",
    "entityType": "User",
    "nonce": "0x96789042cb4686f936cab03458f28e5e168827df53c0516ee2a2c93f4da9f268",
    "signature": "0x77c669018bd598e697d68993bfa37bf8996922d1f7a37a40b6b3c17bbbef2ec5712e35326c1af45c2a4b80937d0a711048781dc9617b6e0e9431bb4a7bfb6c3d1b",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}