{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1722125",
    "entityType": "User",
    "nonce": "0x124830a659eb7da0a296c20175b49f34ee64c56fab5da051e96eb356e792db66",
    "signature": "0x24842260765de2a1b69ed17592a32da237d6c7e445312e7c494b72c6c13764f17079e71fd4283447fc101046d0eb4aad0b6fd2ba965f9da623a0bac00d3ce9571b",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}