{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "334539",
    "entityType": "User",
    "nonce": "0xaf3efa1b0cef182627a00db9efc46c6b81dbd32f5e0bb531eb471f51a91e93d7",
    "signature": "0xc5891211c452464de37bdf00f5ae5da5eaf7670a35bf72c0c9ef9718017fa2345f005738c94919f15eb309e52458bfae6dd9604bfc0ad2e6f37973b3ca71814b1b",
    "signer": "0x476cb68E9Ba3f7c06Beb93eEc0760FA37E725E8F",
    "userId": "323047075"
  }
}