{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "354347",
    "entityType": "User",
    "nonce": "0xf51edd8a639c486556f82421ce871511c992cf96a53de42cc634872d00ffd3df",
    "signature": "0x7739701532b60a2c45f183613ae1ea30f75eec8d285bb4ae48bcc02ade1efcd039ba4d7ed3e6a0cbffe7ffab907487302bc5df6cf0a7f8118c2c726f65b26aad1b",
    "signer": "0xDf2ffE41EC259B85B3F9C88700b293499D4Ae6C5",
    "userId": "339350040"
  }
}