{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "995816736",
    "entityType": "User",
    "nonce": "0xed01eb2af87955ee89af0940af2d3132ce37edfbe645f5b08b6a647638c9720a",
    "signature": "0xb339eb41838758e919ec4ee84627fb5410a0f5880566d5c1a7a1efa7595eaf2c6843a09ef7f5cee6fb873b21f1afb22062c8c5532105219390efb399f22a3d251b",
    "signer": "0x44BAdCFCf42113CbB67f519e4efa576B336f9bf7",
    "userId": "136844578"
  }
}