{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "348015",
    "entityType": "User",
    "nonce": "0x78d370f11be5543e6b7bcf389429a2242cf0ed741f0bd6b459bf8abcf346720e",
    "signature": "0x2dc07a554c2042f9396ba274e0ef3e8907021f89817bc06efa9e188974521a374fc70e2e34a50399b0b2091e7c60f4495c9e65e17014052c0164df5e142014551c",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}