{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "380746",
    "entityType": "User",
    "nonce": "0xaf9f50dc64b5d3a994dfba9413ec3ccab1a1a45eb3875d267e6129a63c2a5889",
    "signature": "0x556f98177701caf0a64a3b7f3c0a4a8b4c4a05ae89026dee576f2dbed8d465f31ef46ced8f93738c38adf5edfe607b59fcbc996fffd30efb684eb9e6c16de0271b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}