{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "13446",
    "entityType": "User",
    "nonce": "0xd3e72c32694000093bfca079d143bcc1849e7b525f9ecf1257d94b601b243db7",
    "signature": "0x290ca53be2da3ede164b984b667f4364e8ad95d6a28f37ff76851f0a0b3e3f4674ccb21cb523366ee0468738517296e4aacfc0feff0a128401d23cb1c2bb430f1c",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}