{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "685453",
    "entityType": "User",
    "nonce": "0xa936e0e9f289a3814ba10ea7399a99a428f8e7228fbc24f345d9684e675709a1",
    "signature": "0x603165286aeeca381204e6fe72d57c58d36285a0b7fe1ba93aad9f05618e3435417de41fb9501e6e27bc36963b7111454bda170d0abe22627549e4a990f72ce01c",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}