{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "13589021",
    "entityType": "User",
    "nonce": "0x32a415693ceb0db5ea862f8c06ba51f0866abb0019a3baa0b0b109136d63fc4a",
    "signature": "0xec1ae1cea971fab6427a4d3b5b399f2475cf696f42430298cf75822cae8c5aba213cb42002bcbfbd71017b56da2121868caf4c47e231d36c3b285709cc672faa1b",
    "signer": "0x44BAdCFCf42113CbB67f519e4efa576B336f9bf7",
    "userId": "136844578"
  }
}