{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "175425",
    "entityType": "User",
    "nonce": "0x4424164dfa61e8c5b63e630cd57118251e864e9f51b7ca919dfec76ffdbcec48",
    "signature": "0x09306c73c6656e29e7e8f917010987c58dd341e7dc68ecbbf934cbd1149e4ad24f2844462ead983fbb86c4056a20d03ce90fcf63b222f4c921f7861d8b6ffd841c",
    "signer": "0x9b1a9d02F213F5C768F11FC832194b5cB665E056",
    "userId": "418702748"
  }
}