{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "336459",
    "entityType": "User",
    "nonce": "0xde3e70cb145c7098718bea3025de13ac1cee7338dbed3f355788939372455578",
    "signature": "0x6c07e60036708a426baf6b1f0f2403f35646cce9a54fabcd8dc4bf503e0e03662369034177a36a5b2bf31ba40dd33d13a82d36488dbf509f7f56675a179cb53c1b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}