{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "410756960",
    "entityType": "User",
    "nonce": "0x77b8c77b657a5cb519c164e36032b364547e3637cb85b4536437121ea6132b61",
    "signature": "0xc884692839af353b7eab6080de8b96cb0bde596ed16f8537cc9dc970a320628f201b690a75e8b19c2457eadfc695677d2e32d674488ba39517a6e89b252293e81c",
    "signer": "0x243A439c272133AEEE0073AF4986dE391C430866",
    "userId": "77551267"
  }
}