{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "348954",
    "entityType": "User",
    "nonce": "0xaf85d711f17fdc7d57f3264ea928e188431e804e84187368c7f7902a558bedc6",
    "signature": "0x0e8542670e509403258f737d4a4d1f6b3eec8185d25bd99377b13d555cb8864a143f8dad185a15ef4bb257cc0f99363a8cd013c8d9dfdb88462befa3d680c7a61b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}