{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x8b7a5317fa3d992d00cee0194ca83c6a176d41b5536622a9fca0437f1d1b0f2b",
    "signature": "0x5afa74d1a4141ff78e9873188af4a3557d7807feac648970c35cce2467315eb06da00342afa4127357a3363b67c0fee61acde19a0ec95417d27e18dd1d42d61e1b",
    "signer": "0x6B313576F2213978b6dEA8CfA0a7164726e00A0A",
    "userId": "629503765"
  }
}