{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "979770917",
    "entityType": "User",
    "nonce": "0x72f96e81f59007e0b5ac6efd12e752f1b09d1498a7bc7f3e7640cfedfba814da",
    "signature": "0xdbbfeb8baebc777497a2e6afaf4112ccd6b97e4a87e0b436304c2a3dab6c82cc72222eccaa5642a054863bad76d8bf82f4c92851c530229f5682785a00a070011b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}