{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "428192787",
    "entityType": "User",
    "nonce": "0x93c63689a5a435c213a0beb8ffb6fd5e732b938d12da5bc35e00bed6a28dff1b",
    "signature": "0xb48ce0d3c59286ac1b5513292f7ef1544b9b971938442e407411904af4a925ec1eff8c5493ec35cdf5d59c385569ebe21a08a2a0979715b4b45e1bda31766dfe1c",
    "signer": "0x1EeF7f4505C388ca4a4B9A8fC01FcFa7c805D3c5",
    "userId": "17766667"
  }
}