{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "991821949",
    "entityType": "User",
    "nonce": "0xba59828bef6d2f90aaeac2321b43fdf9852b68688c5de987463f0d58f8de3fc6",
    "signature": "0x068cf6bb01a7929f928724a61d25d3ca2505039a2687b0fa1b098e65398c152468a66c5a00905e9f851c25dc8a2aa5a93515324f96a52dd16e495a10af9c822c1c",
    "signer": "0xDe6128EEdBB4d15D391871267E286E878C7011B6",
    "userId": "144906061"
  }
}