{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xc3756a8e447a1d26f3d5a22a24ddfbe23ab169ccb61073e2b3169514cda4f1f4",
    "signature": "0x35d0b46fec2246f6f1c269807c484b50df5e4238204d2c012a2026e0a26168ef799b175006eb65784692c3e966cdd37f80ea79605ee85d1b3d4861c400bd2b021c",
    "signer": "0x5d53d29E5ceD9dc145d66c14925ED873D7B972B4",
    "userId": "127609009"
  }
}