{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "152482938",
    "entityType": "User",
    "nonce": "0xbc33cb17088d41310066ed2f312245598f04c990e4fc69d1a19c902488876c72",
    "signature": "0x09b18b32bf6aea1b234d2d1b6dcf9f030df8ce09099ca16e34cd412225cebcb016a71111840e23f993c5e9c73ca3fbd27e6fd3cbe53c24df6b54a7a1b1ce07841c",
    "signer": "0x19EDB4c1a8740c323f6e57B80F3422C01875289e",
    "userId": "390804"
  }
}