{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "148020",
    "entityType": "User",
    "nonce": "0x1455b568bd4e60c5fb4892d4dde4e065dc72872ec8b4304622e1b902dc2c2216",
    "signature": "0x6b4a326a898078dc26e3ffaa655059cafa90fc6af04e57b089bff6fc9d18a1314cd1bfb7c552c3dcaa0a8a06794b64e4847bc3b6fdb4f41dfda8a4fde420145c1c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}