{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x79d6f83270ec162bee3865381197e806e1741ddb65e5a8a0bd8c12f0345bf42f",
    "signature": "0x18b8db93de97053c1db6ff90ee74ccfe63383f57c004795089fc30133ec7e3310797b7393bf72dd2868c4df99376031dbb11f4123c22ba1adfaafa8a8a70682c1c",
    "signer": "0xc350d890DCc6382B84906765c352e34689f1F38f",
    "userId": "326760792"
  }
}