{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "155973826",
    "entityType": "User",
    "nonce": "0xbf79a4f4603e66a9946cb5de3e2eba6a5b33dbf1f5db50e7f77ebd0154461774",
    "signature": "0xef9c26e4825a0a0384ae10473dae3a37f6cba5d8098c094b10e5d726f069d7a12c83e4efbbd5b2ca3d2e63ed2235a13556a958b8aee1737582ec95184a0c8d911c",
    "signer": "0x2230770EC85946F97685aDECD4b734f51662F050",
    "userId": "887741865"
  }
}