{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "390913",
    "entityType": "User",
    "nonce": "0x18b36948eb73ad42fee70b3e90e2364052916c3f6f54dc617e948ffc75399936",
    "signature": "0xc6c6f9859d959f92d07b7c1a5f9b03f3a6d9664c70c4b77050a4503568a528332854eb6a56fca9a1214bba2ce94eaa420b5cc728c20b6ba4e020ad0f82981b021b",
    "signer": "0x9FeC2B9C826d23C9cD13d34D23dEd8E681eD5AC1",
    "userId": "935959282"
  }
}