{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "218220",
    "entityType": "User",
    "nonce": "0x9851a0ac4d8b63f3957f1db54da0b51a293564aceabe988f99d859e650c8f71c",
    "signature": "0x959b594c37ac29608da5e204729151f08e4ca22f65481fa7bbde40613099db190748d43066e031c1f2bff4137ff7ca105c5a0da52e675f39bee0a0ef1fb524091b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}