{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "855415370",
    "entityType": "User",
    "nonce": "0x547909376b575f5f4eac91f96348e946e95f91e8f8a6b5c7ccfd5d58a828ce2b",
    "signature": "0x03c2b93d40305e4988c48177d2cf2473bff0fcc2c446e3d7a09523b25039c8855b932df9e092a41d4288b5ab76806147320ca613303b66d4ee95975198c4b8711c",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}