{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "317043",
    "entityType": "User",
    "nonce": "0x2549367a70b0ca39a5407539a1fa5e00fe16736ca226befca74ef2c509e2a160",
    "signature": "0xffd0a97e4e537cc96e753b06087529a09dac03e3b7d86d6bbd632c76b35e4c01695861e5aa830ebfa937acbc7a9fc1d2242a7cf839b76889b7c0d1b40f10fd3f1c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}