{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2194",
    "entityType": "User",
    "nonce": "0xf4d282ec07c5b499009213424e79946a65ce1619867aeb2d4112a202e4bda74b",
    "signature": "0x03a59747767ba38a9854965ef608123b15ece321ef86e00583c455d0ef38a91d23a03af6ce8d38884979dc7e21d24d8aea3e43ccb36e6cc2662b90b95e5b47ae1b",
    "signer": "0xA5fFfA5b8673Fb93490E3F9B0BeE58e1f0Ce1231",
    "userId": "508186998"
  }
}