{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "263261416",
    "entityType": "User",
    "nonce": "0xb2b5c1b6ce150aac7d554e927f6b0876faffdf1ee28f34e5d41fc4d1c193b0d8",
    "signature": "0xedac1c8f60f7470a46ee6bcd54ecff7baf1f154a16a77f8b60fadf7c81d034517b545e7e2da06cb224d46692a62746fc2a170f3397a6defcc47768dbdc24e6d61c",
    "signer": "0x856dD60453733C7356ce2Cc02B884a7111eC7E6D",
    "userId": "15192427"
  }
}