{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "532505178",
    "entityType": "User",
    "nonce": "0x2c203233c57b59f0968de9e14cc2e63e4dc20527b51b0ed6e24848c991ccea9d",
    "signature": "0x9b7a670cdb08ca20cca61028645270fcbc273fd128a28db0a96f155bbbfb86574bd27b7a69def639790a304a5aee17ebf90e923d08637ec0634bd87623d0a5c91b",
    "signer": "0x6eF66a6206A4589bEd5849d15Bc2746C2603b01f",
    "userId": "989336341"
  }
}