{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "49485",
    "entityType": "User",
    "nonce": "0xeecbf9c47a36709c2c7f9b6b34217d58efce952ec2ba73c83b474c6cdaaff6f4",
    "signature": "0x319d5c6eaf429557bbc39c1d9cebce06f387c033d76f99e57a62b3016cf403300b9380ece9a1d60054d552cd0340777064fd1755939b8e31fac08a25165f64341c",
    "signer": "0x7fdeEB144300AC6b1Be0E83d8f006b2D3140F73D",
    "userId": "325377357"
  }
}