{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "44142994",
    "entityType": "User",
    "nonce": "0x01efe2542f2f5a5f0345aa26e43d9c0503c9192f74be11cbc616d487300416f2",
    "signature": "0x2bb762b488d7973efcddf97e8eeef5b46e6f0138f93eb22d4e3710aa0a6637d96e30e6bfc7c60cb2b4d2752b2ac5b589f1645f364c8be5e0c9c65c00ee2b02051b",
    "signer": "0x069B8AfA1738ee411F7138e49d8baA21774732C8",
    "userId": "403438532"
  }
}