{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x30c60ce90310b38f505081cf66152602644c3c682318c27589c4372d905624eb",
    "signature": "0x9137cabba38b03c6a05a9a2286a09303701fadc2c6f526a15ea16aa2aac4a3a174de27662ebc5fe6ee22ac1b69718af8b34228118dfb604151e6540c7d9370051b",
    "signer": "0xca7ED35Ea6226B62ef9998B36bcD0519E7822ab5",
    "userId": "413318698"
  }
}