{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "28155",
    "entityType": "User",
    "nonce": "0xe4574778ef7415ff25e3c8504c07865784428b56d3321d926509e6c29b024a2d",
    "signature": "0x73e54f0f9f43ae66357a20a8c871cb44aab34b4511827140ddf2122c9b10b3364a67d5fcbc9e710675aaebcfbd57637a47e2057ffed394ebfb16c340b6e01acc1c",
    "signer": "0x5d00855b3c1179d6DeDd679b3203907E2aC6A777",
    "userId": "93724420"
  }
}