{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "745382175",
    "entityType": "User",
    "nonce": "0x58a2c4c3e6aadbe3df268aa2d3f42cfc4f982f08f6202283647c9ae03773c2af",
    "signature": "0xa695f52a118fe28b4019d76c0cdcd68723b01f265ee6f818e69424b3585a5463096c42c2a666bb6e48b9ce87d9b82f77471795b8a82917a3d8ee9821d6bc4faa1c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}