{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "591460114",
    "entityType": "User",
    "nonce": "0x58fa3bb562e892477b6e5eff5bc7e09962f2fa549881361ff70ee51568a31da7",
    "signature": "0x88b9f0474d6385b7fe1f4b22be625fcc22c9a9c0fe4d1de8b7ce20238b8c44fc79128e9a53ea67fb3521a546b968f5d08f3b5e298b2f935639ddd548419920d91b",
    "signer": "0x75387BeED3d3B040a54C3e303fF0B07Da67a9186",
    "userId": "223536026"
  }
}