{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "229134011",
    "entityType": "User",
    "nonce": "0x1158c1b7d90f583abdeda297b0eacebbbf776284effd603328c6b959b70b8583",
    "signature": "0xfd1c9f32e0a07f115ada24d9818ca454e8413ba61a83d5cf5dc84ac141e23998257821cf750ffb9e04b4f7363f9d844e9f2394716c638f54673fd2c393675dbc1b",
    "signer": "0x16D3bf5a80bAfFB2f1550d49b1203D4CA532DA1C",
    "userId": "1994482"
  }
}