{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "954117045",
    "entityType": "User",
    "nonce": "0x753c415f1d8b4d5cadb8f53d8f23a00c7ce89ea363bea5b2d295d6601955d425",
    "signature": "0x10dfc27814161ebfca8852f1ea81a0d1ddf4801c34e99e27d2f05704c9b629b8704a3dc1a4fbc476ad6e1ec113933b9431499c37a65f86e30c925acf83d8d1431b",
    "signer": "0x1788E4C39d3326e598F16767C69826869594E359",
    "userId": "116504833"
  }
}