{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "200080308",
    "entityType": "User",
    "nonce": "0x7bbf86a4e3702faa25342fcd3a316ff1f3c4a9cb14642e4b63bbecbd836e3e1a",
    "signature": "0x6cafec9ed9cd8c8cfaf4eb2347be5904946ba977978ffb8a39f37dd3c29a903854c44f032d60a2f67a66218d061041db7b6eb271ff94943c58a3db99635929e31c",
    "signer": "0x1A3180C2B77F308242944Cc798Ae0C216079DC9d",
    "userId": "916060975"
  }
}