{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "340637",
    "entityType": "User",
    "nonce": "0xb4eefaba41afc6e59fb0e3f674de5819a864b60cfe50b3d955dab7d3debbc7ab",
    "signature": "0x9b5a4f6a121421c36bd59d70d89a952174d0ebecf001840bd9697fef7bddd7c0325e77a60e638a181e46b7ebcfb576006ac93c3b92352a70813ca0ea0eaba88e1c",
    "signer": "0x7eBAab495a64FAea1f04dc59ff804bf939da7B12",
    "userId": "709077025"
  }
}