{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "914786391",
    "entityType": "User",
    "nonce": "0xa30c334684aa1dc3984a03afc27ef977bc0cd5c5ddaa12429baab1d4ea2fd782",
    "signature": "0x9679d00d8ea4003e908e6ffbc7d0cc942d5c3b986fb22000762dd2d46b68f23722e9d32ae9570342c3f6a42ee2a738cbe70fe2272c0c3af993b5ba31030d0fd81b",
    "signer": "0x6eF66a6206A4589bEd5849d15Bc2746C2603b01f",
    "userId": "989336341"
  }
}