{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "533552952",
    "entityType": "User",
    "nonce": "0x5c166389ca78933936450190e303eda5ae45c5e60717c7560e8330138ea3b70c",
    "signature": "0x6e0f6300f4b3875f225ca1a01f4c3db64ac1b54c8438d732d2e8f9d0c0ccfab92b9b658296f72dc1f578f4d77f7cc2a5dddf9b0b434aadd38c2834d40147e3bc1b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}