{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "15807",
    "entityType": "User",
    "nonce": "0x80bd7250bc085a0e52873ff3669845a1253548ad2497210c59cfaadacc984351",
    "signature": "0x6cc80b4505f2956f092c2a03463936e641a160bce68d5708cf1848567d6173e62e6d28f1f34de87766e3113ba80452d5617d50f45585ad349d461a25d34ebb5f1c",
    "signer": "0xC7D69243b2161915036b32017e4FC8ea02d7faF1",
    "userId": "80378"
  }
}