{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "887547386",
    "entityType": "User",
    "nonce": "0x14339bba2d760be84121f6ed0bdd1e9918ea4d6c12d071d363b03b4329059c3b",
    "signature": "0x9ad4b95dfc99e8e668f02fb8aa6b7976a37a2954e63ae3450fc93fa097044bd57f49c36d0baabecbc2adc6d79396e293c362d0377762225e969bb8626affd5c01c",
    "signer": "0x12302E88Cf971407d5bdd167b1AA2664556D3385",
    "userId": "68176371"
  }
}