{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "318514",
    "entityType": "User",
    "nonce": "0x9246e0800e670c7a7a5c82f349f18bd757a1dd30bae4ab5ab881b99ba695ebfe",
    "signature": "0xc50f59bf0392761d3edd10fa719ffeaa6e4ead9f91f45d40ebc8c8d869f77c36555f85407dfded5908910daa0a255b8b20fb4fb0b895b8a7f86fc1b8499be7a11b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}