{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "172",
    "entityType": "User",
    "nonce": "0x0b8e94674985497be58dd50d126391e0661066cc5bceb398d1838e62331eb1b1",
    "signature": "0x905d4e7b301046c0936e32c286248bd55243a42181cffee3fa33690b7efade4d761ea15167a160b7d23e0f989d32bf5fd110f9c709bd08b098997b9214bfb7241b",
    "signer": "0x90d627796C9E2071AAd9F8C20f6dCE95587F6d13",
    "userId": "560619378"
  }
}