{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "306414",
    "entityType": "User",
    "nonce": "0x198b00b683f5e88cd7fafd5b4bafdb42ee5886764583a840e5e3ac9498cf9c4b",
    "signature": "0x37b6b758268609e56b47dc581db039371014f5c7ac04232ce786f6f1203945ef5dda5bf9d432dab78bde90c442a35270d8e3c96ec8060f324013596b3f3346551b",
    "signer": "0xb68FB6A5ae9015De46D9634e946c04517523Fa43",
    "userId": "134619804"
  }
}