{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "83745",
    "entityType": "User",
    "nonce": "0x9f8c424907cf4a93f1345102fdba9cec79efe5efcb705fad57432ab450e64208",
    "signature": "0x26aa81942b816ca9a56b78abac707fc63073ba78d6ccfcde435c4bf26aff0a600d205255dbea41f827ac7c309085709cab4ac94a574666f41c722fc568af8a801b",
    "signer": "0x6754A920da1003d0904BdFf228A6E217Cd12bF5E",
    "userId": "105562689"
  }
}