{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "220037",
    "entityType": "User",
    "nonce": "0x7cf51f57da88cf329d595e275de2cf02e18afad71c0d2f96057a8de45ee33aa0",
    "signature": "0xa987ae1b1f9bcda9337dc47eb2a628d05c46ca5d28516b8d429eb24011ba4e8a3eedf32b2932680ee62672d269418dd6f959e8ba1ea3df8001940945d2c3b74c1b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}