{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "960158487",
    "entityType": "User",
    "nonce": "0x2f04755bcefa61575af05c38f29662d07461467c9935d6f14c2c9ab68715fddd",
    "signature": "0x7289b06363e3416351114a73c9759800b80c0e5561883bfdc372b03c1af9a5e841bc4889edfda0ae9d8bea7f0f235aacecb203842d99d9cf238bcf03411e31d61c",
    "signer": "0xD967b68365738013c9197659aAb46EB73a488080",
    "userId": "488430169"
  }
}