{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x9015f6f87e6e93c334223bb70c86e05ef9489ad036d234db4f04a64e8f15fefe",
    "signature": "0xd6a891ae48edc991b3dab1d341a43824d1c72fdd1543affdf64c13e0c0aeeea9006063495cd4aa49d0e6bbfa8593dfd9f030b8719a9c26f31df7d67e7a201cb11b",
    "signer": "0x38eF53b69FD00dA5ef2Eec1bC1a2A32a50B54A8D",
    "userId": "592928275"
  }
}