{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "702404",
    "entityType": "User",
    "nonce": "0xef90f6d708905caee1424f7746e522509ad1e0f700c917d37af3e22a404bc1d1",
    "signature": "0x46f7c503216f92f85fbc0f9ad4d2baca53a19e50285023cb909c5fa41b6966957efb5605a4411bc7fed51ab7b5ed8e000e5b63d026466750dcc6100c7c86f81a1c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}