{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xf929743f5a89cb891902b93cee07cfd66ef10ff1cec859aa88585156a2079610",
    "signature": "0xb2c2379ec2f7f28974a3eea8311b182d8b807e92e05d25586375465a5ee2898d1d928830fc5db9092ffe598280686ce92c42ec75a5f1c5ccbf17cc147f906a161b",
    "signer": "0x74fCC8A9A86732235735AD4bEECC08e570ed0373",
    "userId": "353982286"
  }
}