{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "157194",
    "entityType": "User",
    "nonce": "0xd29a19660edf6789763a32b375aac8ba5727d5d52df9902b045dd9f2c00bc4ca",
    "signature": "0xea3cea2d971169ad9a43c3de105b2563461da1113f9597df6b9b3e6c574e63dd49f59e453ae836bba32d271c72ab44746551705aca9167d83f03fbe0cbe127511c",
    "signer": "0x2D566E1DaC6fc148a694abe846B32e39B6584aa5",
    "userId": "890889753"
  }
}