{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "708077815",
    "entityType": "User",
    "nonce": "0xf3ba8f5289898d39397e0339b5dc9936426d69f2b006dec4322621e1cca40ac5",
    "signature": "0xd18b20b60145cebca1da3278fa9a888c196b711975bd71f3b3810cc7851313a91ec980ebd77e32f3e757e9d6e08e53d31ba7f1edf4755c09f2e9eafc1d93bef41c",
    "signer": "0x982F30e13aCd411fdDB6e273FFeF1e1F38780a64",
    "userId": "993944575"
  }
}