{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "389177",
    "entityType": "User",
    "nonce": "0xfe978d731cb7556d95701d8ea0e251a638e12445427a1ca39754576758ea0869",
    "signature": "0x32056c2954c4e20c610b032325aa2e96d4ee0d25387095c67ac8f28c54dc4cf634847a05021b05dd409759cf2de82b39649e69ce987656460a835fbeeba7ea7f1c",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}