{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "713649918",
    "entityType": "User",
    "nonce": "0xd516b229574726d7a89babaf50d84a9767ccf7777dec46bcdc1d613199099833",
    "signature": "0x189c7c0122d6486f255d3e25d34c66ea338e84de2018f5b21d3d9b8b30d3d6fe623b51427b0e3f5c627efefb5f2acac969cbdf379e53a5c79fff0b5658bd7a391b",
    "signer": "0xEa5541F90A3d444911a8e98Cd834918bC96e711B",
    "userId": "892926837"
  }
}