{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "66129",
    "entityType": "User",
    "nonce": "0x7e3dc3a01fe8e2b2f47fb4c47aa767eb62863b5ec119ebcff9c3e37c95a33eb9",
    "signature": "0x8efbd22eac6dee2bb703109d9090274f35500b6273819bad6c6a9204873adbdc2a0e25cdaca056d4842c4f6327642eb0908b0f59875109db14993893f8cea8621c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}