{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "50722",
    "entityType": "User",
    "nonce": "0x50a93a489d011cc132750e81e721ebb51f255d5d076e34dbaffc968a9ea3021c",
    "signature": "0x6974a6d027e86e5decf73d30fd637f4200c3901aa3b9b9b5c79efaf76462e40f55d0a201bdab634b51a0b908563164f49adc8b38a51374492b2d54e58ef5cb2f1c",
    "signer": "0x24844077bE6bb825c0548F36B4EFA030d05Ee1CD",
    "userId": "601282125"
  }
}