{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "136844578",
    "entityType": "User",
    "nonce": "0xc6791afef76b15e53c2b33cd42f73c403fbec9e08d80dd89ccf41b3fa2985951",
    "signature": "0x7de66c71adc3edf43884977e882aa9a92af7d5ba30963000fde79347b0db19040d8272f790f64b382d6752a6d2fd4e2abc2b3ff2c36e003ea425d056ddc01b7c1c",
    "signer": "0x1788E4C39d3326e598F16767C69826869594E359",
    "userId": "116504833"
  }
}