{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "7321",
    "entityType": "User",
    "nonce": "0x70708aeae9f76c9b9d3b55f0c4aff8b89f4f45c0ef0a49d1436b3d14fc9a17a1",
    "signature": "0xeba3aace8e4e11bca48ce201dc725174b4ac8bbd19ce29a83181707d6c22f39435dca7cd52a8139bd5791d1bd6b804547863862d9386985bee54ddcf8000a7701c",
    "signer": "0x6754A920da1003d0904BdFf228A6E217Cd12bF5E",
    "userId": "105562689"
  }
}