{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "12615893",
    "entityType": "User",
    "nonce": "0x72713d80c0b9294b427f2661f84e2f1a66ac3cc57e045670d6f8e0892518490b",
    "signature": "0xd7932e4e98788532fac0d127b7cc78bb87c66250642e20b1c5b729cc225ab09554948ad03a5b4b561360314a3e46c4b10fa26900caac0c0cbc83ffc5ce4dba3a1b",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}