{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "354016",
    "entityType": "User",
    "nonce": "0xc9235abe69de0dd8a6b0e17a44aec8b69887b252e09908a966c08f9d624d6d02",
    "signature": "0xaec3efcb3a879c105713bf6e67415e7d17f41347c0c524a02d48be8af3c282e66263344ea7ee14983e78857abd3896594800b5de1c1c86a6b09f2c066dc86c901c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}