{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "175425",
    "entityType": "User",
    "nonce": "0xb4b24ad58caa16a1fc18311013d3434417f27ffa3c71e1d2f62ab65d1dd5a1c1",
    "signature": "0x54f94ed64616bca57b0b3abecdd9d0fbc45515050d729d98b92bb6d2b93f41ff63150f05e99eeb639da7635d172ba3edc902821d3e19d584d9b6acd7be2dded41b",
    "signer": "0x16BE3cc7Ee03C75AD10a94fb7234B045D351825c",
    "userId": "66529124"
  }
}