{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xe29078caff8d7db03b9c33f6692892657e304021e579da71a9d5008017dd4b7a",
    "signature": "0xc3a76c42fe007c9ffb21ff1ca2301813df110c850689f4795c80f5bfe2e3ee0f226aaaa0e3b5262af7654509e4f4e747923efb8846d48ec2490bd27d04c160a71c",
    "signer": "0x8346caC07445e2bfd9cfF12337BE37E7Fd3c96B6",
    "userId": "236184745"
  }
}