{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "329674",
    "entityType": "User",
    "nonce": "0x17ef1b1eb34195ab03e73bd9735253da5ec84c83078e74e0e8e3c9e4bb6ecd5e",
    "signature": "0x055b2c7603e5ffeb00a4a96747835938ca16ccaec3eaeaeab8fb0a8cf586d7077a0975973baa9c29d16de6aef144ea6554ad41d7ec40729b3d02323dffa073fc1c",
    "signer": "0x55F8937EF7902E83b15F5BB7c7bf72a0a2989C54",
    "userId": "233666542"
  }
}