{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "568518925",
    "entityType": "User",
    "nonce": "0xa7c85f2bbb104aff3ac5619416acc5910c11b35d248d3bfd1b12266b04d92564",
    "signature": "0xa9089031cb9feaec633c156cfb2a2807d86f0e73dbb55fc3555b70230befd4e43c1f9b0457547eb5a1fe03c2d71ca1b4a57cd1aec87b2999f9ebd0ecef270f551b",
    "signer": "0xb68FB6A5ae9015De46D9634e946c04517523Fa43",
    "userId": "134619804"
  }
}