{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "225525",
    "entityType": "User",
    "nonce": "0x8960699357f68dbeafbdf78b5796988982cab21c050f02cf4510a8cae7879205",
    "signature": "0x0cf618d584214809cc46853a44e6551ad64f36e921cdf172dba3d596eb37fa8d0abd43a5577a25192ca7990ea46762875e0cdd675203b9f12d2f3f75c2a514001b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}