{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "138345",
    "entityType": "User",
    "nonce": "0xd3ed6d29ae47fa606fbd2a2bc94ae353e0b69e7077acd5901fd24008f85fd089",
    "signature": "0x9651a7d97ed194a3ed307775ed3aebc82003a5cf02fe289a797253e90c5f81662e72ae91d0bdc008a44643d860001a8081cbbda90fbd5b1ddb881edee63dfa8f1b",
    "signer": "0x5A4a438EB48E0567283E8B2Fcb511DE3cD0Da231",
    "userId": "102202598"
  }
}