{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "918",
    "entityType": "User",
    "nonce": "0x27dd2e5e1d3dbf3d8ba7fc6cc74aee29f9c561b99d30fdc28811e7264c38da6e",
    "signature": "0x2bc77a8fa113047cb3f9632526e683621d30186e160b3167d768a055e8ca73976d79d940d4742bc35a0e121f155fdc7d08fcdbb56dcbebe76c8cd0b94b8270b31c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}