{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "6350",
    "entityType": "User",
    "nonce": "0x349f6eb07263b9a2f6484c856cd7d83d76226d80b2402e4714104c13271f5191",
    "signature": "0xf5dddf846ecf4d72d530e4e5004c68fc23f01f0176cfbc45211cccda271dc95b1c5b48c2d36777e38fee0e88c0d073c0fef62cac0e255d13d7c9df6dfcbd6f391c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}