{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "89822",
    "entityType": "User",
    "nonce": "0xdd3e25733541774061508c9c6f3c3c972ae3d2fe5dfde9d7512f43c4a0e2cbac",
    "signature": "0x638da65d46228cc2e9bd4c176f2bcbf6b50523e6ccfe3133402f950102ca8a7235009795b2db2738da4b0cd94634ea51b3acc75de1f56115d47b2bd24502baab1c",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}