{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "881446128",
    "entityType": "User",
    "nonce": "0xd431cb4aadcfd0d2210d08aaa9409c2a0e33b160aa2225a028a00f1c4ec8ae58",
    "signature": "0x90846ea899f3f13323c7004be92823de93faa488ef611a344888e461368b1adc72c8151efa5edaa9145380b8435f63191f72e1a8c1a026cb953225cba7ddba131c",
    "signer": "0x0EeC6f3E19Ab6e181bD36137D630E24db27D1950",
    "userId": "113500532"
  }
}