{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "9139",
    "entityType": "User",
    "nonce": "0x868399dd4cb9652f781aea7472e185b2b422f943180123f185df431f45529cc2",
    "signature": "0x330d3c44fa4c24e8a9a753e67ff4a26f22f2a3cf65d12223ba9c4b2a4ec91cdd45a8d4e51b28c670e5da4569bfef8d2f276a0e0f75d2455d546d94746abbced01b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}