{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "336974",
    "entityType": "User",
    "nonce": "0x5ac73ab01586ccbf6fcfb417e18e62d18f20915b401fe6cde511729045ced85e",
    "signature": "0xe8e9ed6c20ec721dc6b3fb4dc764fcc64fc5e9fb429bc4993e26f27487c5cf804fec6f52c090c2875f5cfca6bd0fd87e3966e451f8328a7f9b7114e2518bcc211b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}