{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "230019",
    "entityType": "User",
    "nonce": "0xf90efd7ae0b00ad3840759dca2eeb4b01caff3c60ff184e1f8f9042b5fc16772",
    "signature": "0xc8f564a54c8886ac137dd199633a341fb34045f61ecce16d671872c703421584583bcac6939a595c1eca9668fce6825043ee45784258caa6b191828824e343b81c",
    "signer": "0xC965eCf215DC75172bD11e8E1dbE76EDd838886e",
    "userId": "260849"
  }
}