{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xa591385f8cdcd6b6bbbc777b7a97d83634b7d0d1e09e0e62d812263c6ae05c78",
    "signature": "0x526378351f40dd1094ee99540ca3caa73f9f907b6e2dbaef775b71e64880e62c000772b8a8fb7244acae0a91ae7bf2d134f5aae6f3868c4009ec01e3a93453601b",
    "signer": "0x5bbF3A47AF13D652dd6E42D4EB9454Dd05EAd2Af",
    "userId": "413884624"
  }
}