{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "153928",
    "entityType": "User",
    "nonce": "0x3759498b466f627ae2fe33e97cd33408114fd57f7cdad35c95e78704510a66a3",
    "signature": "0xd7c8182439b8af0c02b31d98c995275ffcb942dc37041263a8829bed9aab488e534e398074cab5d95a5b278361e2e6ea7e8f2e7395852ffc2ea371edab80f4201b",
    "signer": "0x7451Cf52e883bc4483b88591c194dc3942E7F191",
    "userId": "584186978"
  }
}