{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "121113",
    "entityType": "User",
    "nonce": "0x67c7421e3d068c22bc941f59ff1f4ba054abf439cb53d6eed1b7c1d8f91eb5c6",
    "signature": "0xba55b40c5d0e02b7a86e11c252546f551d06ce3d1e0df974a589373bf1ec9fd46ab49cffc2bdf260fb7105e80930886c04cd8f2e8c55e4f3a4e31d7a19bd69c11b",
    "signer": "0x45C682dAb9Cd8ED5e055aC2F6a860Db5F14c27C9",
    "userId": "611525840"
  }
}