{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "232877",
    "entityType": "User",
    "nonce": "0x9c392e745a4734d0b4ed4824c922df0b7db4ff8c531fbc6aaeea3bc21c042269",
    "signature": "0x17c06e310e458037ce55dad366c15b7f4657f03677af8f6c09142fb70236c9206faf3a1fc4b6393a73615fc78d04f0d8d57237b6d5904e1cab4079d9f4fe488e1b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}