{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "154589",
    "entityType": "User",
    "nonce": "0xd21e8ac6849fb354550739f870ee41d67534fd2fd0a15df317b266fe2b5bcc17",
    "signature": "0xdcdd22b3cd5decbcfb8e023b8e94b724ce82cdd81d38bde39af69632bb4b792750ca4ea8dc73d292648753e0d8abf8dd9ec48bae688f90c98e944ef4c34346171c",
    "signer": "0x926F8d71a7109CF6Cce00DA74e1BcF50aAf63E8b",
    "userId": "358546053"
  }
}