{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1844160",
    "entityType": "User",
    "nonce": "0x1cbc2953ef655bc4ee8f04b48e05f47fbab312e3e9d9f69345cf89049381bbed",
    "signature": "0xa248a1cb0752d24189fdb1e24a28809a9592af9aa9764e1997759af3e6cf70a04dc08f5fc2b472bcb4b8b39607174f0b7a1d6dbb2413d7d3fbdb39c385fd44041b",
    "signer": "0x03b70C3825d7b9e568C53C89a738061d855d0dec",
    "userId": "578849678"
  }
}