{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "937139185",
    "entityType": "User",
    "nonce": "0xf1895a71871e6b2ca2c269a2e683154e0f3aea92ebb8ac22f4cf38a54802e2f7",
    "signature": "0x60dd290825b725a780be3066c81d44d2695627b51adfce41cd0585116c3b0b30278e454307758e891d27c84b9d26f6152cf98ff0093f66e537b0fd6904fa4e461b",
    "signer": "0x03b70C3825d7b9e568C53C89a738061d855d0dec",
    "userId": "578849678"
  }
}