{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "305022",
    "entityType": "User",
    "nonce": "0x04ec9da4daa0753f8146f22f98c26e6063ec4b368aad11a252cb76b9b3b08b30",
    "signature": "0x5afbc5bbe99f09e81e93c74241b41c874252b0c5d9027d90ca94d4bb155b31735947be5937c8599c2add41d6aec472f7515ad11352503784ab7930bcf637e94f1c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}