{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "311257477",
    "entityType": "User",
    "nonce": "0x0c1826235765bf0b8b9c7cb9a3d41c3ed7c350925b207d080fabda4cb813bf32",
    "signature": "0x1f31457e1d0f80095343fb47c14e5e8c8bc122f909ba5f4365abbf1357865e2971c906af4a662d225a9b4d1f70d9b306a5f818b8229976b21b695dd84765c0511c",
    "signer": "0x1481F49fD2f6524D8CDC0089b13bbd2e6E9106F4",
    "userId": "231243"
  }
}