{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "297619",
    "entityType": "User",
    "nonce": "0x47254ed31c27413066d365189be0ffff492899398d68c13d04631155a05be95c",
    "signature": "0xb64325c291787098514f5b459df43502c7d3916cfc6777650d2657ba13b2224d478d11b209fd89104147d772aec46ecb8c395d49369bbb1ffc8ee622eada9ad81c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}