{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1425813",
    "entityType": "User",
    "nonce": "0x8e2b59103ee82c5749721612a76da4d4952dcec199d72881a04738d3fbfcd4c7",
    "signature": "0x518ea1c8c4779e6e798e5c15dd1120a1de4bcc66bdc41a71ba2d24e7d77fe3b44a0e8cf4c1dc97d90c380a752e67cecbbcfec49feb901cedabb32b9a8f1891441c",
    "signer": "0x14fa63A530B7d9254d20B110AAc25ABF49fbfa9d",
    "userId": "182428"
  }
}