{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "12634",
    "entityType": "User",
    "nonce": "0x78dc5b3a8d5beb7c19a23642dbf035d2aec14fd2e65dc7ad05068d8ba66bc99a",
    "signature": "0x4309e345443bd4c80fd5bef6a7aaec44701e7b864bb2d847711f05aa759bf21e36a922f4eef0ebf2ecf927fe31a0d8959dcef37c28298e1dd081f000ba7ac3071b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}