{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "11655",
    "entityType": "User",
    "nonce": "0x21918439be6a5f72ecc2199cb32603a22ac65e7a505d43842ff6650f1b64452f",
    "signature": "0x16724681f2c695218b5fbf9588f7c1b03edac76ab0c2496092c259940f469a3c51297375928bec7d75a1f3fcf4aec55d66ea62a8ec07e0c27f7de6a8dc5186541b",
    "signer": "0x55F8937EF7902E83b15F5BB7c7bf72a0a2989C54",
    "userId": "233666542"
  }
}