{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "755516",
    "entityType": "User",
    "nonce": "0x2db4e69a979b03b9f4b12fc154a7f3a68c9cf2a9a5804b1d352fe68f73ca9ebd",
    "signature": "0xf24afb0d60d08f955e1114c4096a9520cbae04700d37152d396d27f5d48fd024315efcf596ebecd63f76973af3b76c3c6abe826a9369bce053b4a8d697c7c9871b",
    "signer": "0xdEc12eC3F7972dB51907501aF18eb17FBa37a413",
    "userId": "211416595"
  }
}