{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "28155",
    "entityType": "User",
    "nonce": "0x1ccd4baf288d4b634fedbd1f3876e8b3e58b8e392fa5402d4db0660986bbc20c",
    "signature": "0x16df2deb4f480529ff3a4d13ba30b12f7e94f66a55071ba578c53142532ea1ac53a88fedd6680c257374bdce0a71521ef8e01ee95f44e811c234306716af8f441b",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}