{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "394061",
    "entityType": "User",
    "nonce": "0x90212f05e9000041296aeb9d8ca1ce82395edac46a1ca954a4d494efefbee353",
    "signature": "0x6b6b77bea7c760a91334986f500da82768c0c2682e88b9716b10b4ac6cfd330a523b9d178679e4aadee0a747f41ad36dbc34a02b416f078762b9601b5282b3b91b",
    "signer": "0x204E506f1D5498d2CABD41d2fc7a3078d5792835",
    "userId": "768479471"
  }
}