{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "325624",
    "entityType": "User",
    "nonce": "0xc7df2ded097278684f6f5217794e77aff938fc0b5c3694cd93e4eee4eec2ce5f",
    "signature": "0x49c36e99a763d855bf71b9d712bf1ad936df9d9216bfeb9dfa87cc0f40d3c64158d9702eacdec8f90588147a4019bfb9b66e3bfe6759dd4517853e7a674ef4b31c",
    "signer": "0xF25643A5E2Cd0B30a211228120b26e63d80c81Cc",
    "userId": "849457242"
  }
}