{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "344158827",
    "entityType": "User",
    "nonce": "0x0b75e0910b923d162e58aa6053612c45c094de0f6e1d28b1b5b8a9f5eb44740d",
    "signature": "0x4fe458279caf9f26b99669a646d5eb5418e6056485d68e3e1fe9b6f8fe32f8681764421864fdcd8b472368e13faa1a60a6b21122185ce0461462ea4835bfd4141b",
    "signer": "0xbbB98413eB671bb0000F0b18A2A7Cae9631043E1",
    "userId": "98311147"
  }
}