{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "315091",
    "entityType": "User",
    "nonce": "0x09c88a859a5a2fc247548eb5e173ab875b26054c9fb0626dab88985f1274c9e2",
    "signature": "0xad1398e1957ce796ce656dd6d7e75aee6a642fd2eccf021bc06520d7d320102b7451d7f69b63a78e011a8ced32d5be423c8416e884c54eae56f79421b78e375c1c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}