{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "464347",
    "entityType": "User",
    "nonce": "0x8b033172ad9b41daba446de2966a06a4ace55cd7b980431ddf6550bf55f6274d",
    "signature": "0xe16e3816caf4e5de70670a2735a765964a560d6be029a818410f2f58b13115df5200d0f5449abc6e5f74831e2c500e79169f80a9e4e52e7dbc3841e34edf42821c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}