{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x84b90a53fb8dc707df22a7526f7767bff4e83ed6803063ae02d61e6e486e2a5d",
    "signature": "0x500d8b9dd835b313d6db93c53c6040641b11247872676ce8838b78d55af413036f6236319a0ce1ff2e449e88744f0aec671567b6b044ca6b533455d5436921421c",
    "signer": "0x233aC82efF8a230FE6931641939fFF7F353ca762",
    "userId": "986654331"
  }
}