{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "163526",
    "entityType": "User",
    "nonce": "0x50d5f7a42b6c768476f5f5f9d660ee2e12b0d4d9c9f60fa66d1d3f08022f8824",
    "signature": "0xa71b916a4f40b2f243aa2c70fdcb7ec09775b9ef01bdede9d3d8a45437a557ea7f03d58dd6ba22387fd1f9772f8714df193346a858d5f794a5d29507892e4e741b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}