{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "338035",
    "entityType": "User",
    "nonce": "0x6ad1cce6da7957615d1bedd310fc6fa4271d7ed7cc7895382aec2d4d87d7678b",
    "signature": "0xe25d074f9e122681f53e128cc3c6bce66e9062351a6076004695d073b25792612e544a16a7c46492a454d5fd4f980d7f6a42dbcda77814cc59b7ca257be072ae1c",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}