{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "745901100",
    "entityType": "User",
    "nonce": "0x3fd6d1333790c15e79190c1735f351566a0cdfd0d96bcd5398e5cc1dd6177176",
    "signature": "0x9b39fefc7dd056d76d93e08f273916bf558934d57af386cb85eb99f6cb7297895c9d54d09f2daa11065270954ba126c3754bb926d21b6a0dd7048a9e722eb5b61b",
    "signer": "0x24844077bE6bb825c0548F36B4EFA030d05Ee1CD",
    "userId": "601282125"
  }
}