{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "313148",
    "entityType": "User",
    "nonce": "0x5cc501cf1a18512fd836ee2ee67a03c87810f4ef98fb6ac1712af2267c247bac",
    "signature": "0x30b20700403d34ca19881ebec7e47e84d161ca91071d6489ce81bd17057f13e92b2339be930de6533536750966a550a2eb5cebc6aea44ac86e93305e78729f5d1b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}