{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "558452493",
    "entityType": "User",
    "nonce": "0xfe2c644138376c53573a85d82fc0165e1af57213fad66b9fb4379d8b277b6b1a",
    "signature": "0xcd35288c61933caa91e937ff2a0f58b8e7edfaec32d40ca12b112aea908412b41d5e552aa5885954e326fc9edbea9c970e4aa13ffd997887aa86d9c9d36171941c",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}