{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "59387",
    "entityType": "User",
    "nonce": "0x29e25beae9bffc863da77f4edf8092e96b7f0488f5462d6c864cbcfab32c8674",
    "signature": "0x4425f49c3f4322866deef7a58072e386c3704a40e2498c75de3dd723d5eeb9017e7ee27454ddc51c9005844a8a17e40dc654c5cde06cda49a78787e01b3c01bb1c",
    "signer": "0x5452f86EfcB1153FF9C10bdbe4103Ce25434D124",
    "userId": "620307004"
  }
}