{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "787975550",
    "entityType": "User",
    "nonce": "0x89dabe202fe0e0fe780d70ed2f0a19beac9234fd113cbd7fa406641bfdc7094c",
    "signature": "0x62ba4930dfc612706d76dbc5313f8d539f662b3ddce3085c32650be5c142e45c3ca707ebf9e3b84d6f9f853d8f8b0a96f046689d1a470fd16adfd13b7fa45e621b",
    "signer": "0x79375D6d575fE2a038916001077f90CbAE12d4A9",
    "userId": "973873678"
  }
}