{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "963075181",
    "entityType": "User",
    "nonce": "0xc75cd9cc4cc2d0f26bc1c28beb6f8a733cb7770b9c4b833dddc6473ecac494c7",
    "signature": "0xf658a73356a4fbe26b69be1ec64e9391297ecd60492d3d2b265faa449f388091451fc62a969e775c961b5aaffe9e2df241dddc8fd100920c8d6b14aa0da6e5491c",
    "signer": "0x2B171214e998033E806F72301307B2160CD94DdB",
    "userId": "489165782"
  }
}