{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1681577",
    "entityType": "User",
    "nonce": "0x78610aad6ca6e795039626ffac58caaa2c818d72c71d34dc4cff0198f378f829",
    "signature": "0xe360f487c5faf3a9c49b4623097b8b1f5d1a3c687bc8dc1d8651f07157f0409749deeaee297f83bce6104910ca67272a9fed8d55a638ec3177b9f5ceeeb5e7771b",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}