{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "748067870",
    "entityType": "User",
    "nonce": "0x7fe5f6af1b774fd6dbbc8353980bfc41aad9d2e6683817682c9c4019a956a41d",
    "signature": "0x95cc71a93b3bf4b35b72103979a0eedde326f758a0ebf18d3fbf6ad2d7182ab6549b0241ae54478bbfd33d4a2a99ac4a1850780447632a5cc64d2a6833c5c7261c",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}