{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "16416",
    "entityType": "User",
    "nonce": "0xe9840a8e6419973cb4af7c1df9932938a100a5cd2d9d81f4892699541fca02f0",
    "signature": "0xbfa510e173a279615c424e80402dae0eada6ec2859f5b4968b6b73097ef39bc751c8fa45edac4c2636c6a89d4de2db12d2bcf2bfe935c90e4ea0c398ddba74d31b",
    "signer": "0x7eBAab495a64FAea1f04dc59ff804bf939da7B12",
    "userId": "709077025"
  }
}