{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "6444",
    "entityType": "User",
    "nonce": "0x5ca7f797078fe3db88a7c90f2e6755294780fd59f11d33a4f7b2320c95dbf75c",
    "signature": "0xb77f3c1983ed128d6095c005699988c6f0d2ff620cbbf23e18a3f7faea1070a53e5727d3d41559165b91fab34aeeb4d73c5e106264eb5188d5383750c61fd8581c",
    "signer": "0x6754A920da1003d0904BdFf228A6E217Cd12bF5E",
    "userId": "105562689"
  }
}