{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "508186998",
    "entityType": "User",
    "nonce": "0xba2fd1b3f8bd75d081e706a5504c6e5693699cd9218b073d6468d680909b740c",
    "signature": "0xf21bc7b6396cf230c622f78102dd91c569de2626415fa30aa373fb7817bb1df935dd4933d88287027ebc8d9c91152007426bcfcf8e58333847cafe072f75c12b1b",
    "signer": "0xeD4de8C7aEdcca7a62a5E17Fb9DF5ee4991E5b73",
    "userId": "209405413"
  }
}