{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "8101",
    "entityType": "User",
    "nonce": "0xb0764d6a34605d7ffa582b20d68a23ca2ffff17629c51037ccbcb9efd1b83bcf",
    "signature": "0xbbfc76fd9bfd686d2f12e640cd4eb55ee112d301bd55cb5293ac1abb57909a5f4c3dcefbba71be6187be075265f98323c5973b46c8589f83bda5c34bb06b04f41b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}