{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "381868",
    "entityType": "User",
    "nonce": "0xf4803788ae4bad9ba0f49ea4b0c78c8348a7bdccd1d34ac247c301ad3da01797",
    "signature": "0xdfa85dc932e4e978b5c9bf1de113e40d30221245ac0215920924c65da2208594088bb0b3cbea3022b56b42dbad970c7735f71adc02fd3b53cf7b4ae16e5380e41b",
    "signer": "0x7eBAab495a64FAea1f04dc59ff804bf939da7B12",
    "userId": "709077025"
  }
}