{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "727785",
    "entityType": "User",
    "nonce": "0x4f07f4074796ea6046c156869f1266fbb375741eb37f39989ef05cbebaad57ea",
    "signature": "0x2e0b9a183dbd2e6167aa7394c53e828f97cd97a15cbf4e930a8ebd61ead61cdb776d278b98f063dd38896e650d379ab349c6b1d81a363bd0ea65cf9daedd329b1c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}