{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xe7d77a7b1ab212a444495cec4c921f5ebd2ab2515bd82c76f09626e4ab97eb32",
    "signature": "0x04a36a399e133ab97ed90fd18bc34bda850fb122a9bba0cab18895513ce0228f5f00a2893228f38aaa5c90b07564df84e32a927ec41960774bb04413479e560f1b",
    "signer": "0x936DDcd5C4769Dc169A91f6070C4D2746a100335",
    "userId": "139817857"
  }
}