{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "193299",
    "entityType": "User",
    "nonce": "0x599ddab9b3d9e15c35ddfee12ff1ad808f49f9c47cfcabcf3d1a777ce6b9d36e",
    "signature": "0x0a6809b85cca80ee6dfcb101da53548f231a715a22061e9f521633db26cd1c3a4895205b7e24a4d937411430dc7aada06cf3e041297692ca507d298fd3081dca1c",
    "signer": "0x1E097836b696E63387992B7402dCcEF7842F477a",
    "userId": "525334885"
  }
}