{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "935264873",
    "entityType": "User",
    "nonce": "0x9d2805e2fdd38b741e8445ad23d13ae5e58f34429a567274e271d65dcda03bfe",
    "signature": "0x58f3fd6078049ed67bd508d91bf36f9b9299ef91a7a6287f47c1220666aa4cc45004c1ae9e520d3a39e697f3b8b9c898bc8b09b5a510eb297b015613df7f699a1b",
    "signer": "0x03b70C3825d7b9e568C53C89a738061d855d0dec",
    "userId": "578849678"
  }
}