{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "281227",
    "entityType": "User",
    "nonce": "0xd4c0daae252fb7e4ad180d2ba6b0339bfd4fbf55c1cd52d730aff8705131cb02",
    "signature": "0xd5a9029f98c0cc2f5438790ba25787a0dde7afe6536d57a7969fc0cb281f1a5a5a15fbee1828795fcb407b1dd9cfb077887f47fbaf6552484ae3c2e480bb51b01c",
    "signer": "0xDC5D8e6d43489811098d4d3D31fB7D6585c9Bb31",
    "userId": "735980234"
  }
}