{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "213324",
    "entityType": "User",
    "nonce": "0x89a9b9350bd9df8fafc7d0a9bc7d89d143d35cdb066e377f4272077cd34f257f",
    "signature": "0x72078d5a47d96d713678982a32e55a210fb912cf1450710914614d1fed81f9f10c75ca2dce7a043e8b0a981a290ee31543aaac3f6d62dfe2be1cb61a97eacb841b",
    "signer": "0x7E83B25b16B783fcd72F59CE3004CB54a30e53dE",
    "userId": "611206472"
  }
}