{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "348395817",
    "entityType": "User",
    "nonce": "0x5019e5a2bba564d0f28c2f21847e8f2b318d690ad5fcee5e32739f5569fc6d24",
    "signature": "0x48fa6e65a080ea0ef62c239ae020e8f3d1a86950f91bef8ef92d535c5a0fa82422d8cf47e4749c1eeb2dcf9fc4812c5a66bb430bb7a0d1a641aa79a70bf5fbde1c",
    "signer": "0xA5fFfA5b8673Fb93490E3F9B0BeE58e1f0Ce1231",
    "userId": "508186998"
  }
}