{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "4967",
    "entityType": "User",
    "nonce": "0x03708e4b5e5019fa9d55adac8dbfbbf477614411db35de414633d69414eb77fd",
    "signature": "0xc0f43f24859d2713780a103bb1406e16ed05c6b6bf628ee4dd0d412cd7a481654e53176acf566006b0f08d354d6882302a13c7b4d0de3115f46bbce257d0391b1b",
    "signer": "0x55F8937EF7902E83b15F5BB7c7bf72a0a2989C54",
    "userId": "233666542"
  }
}