{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "704158",
    "entityType": "User",
    "nonce": "0x8c1213137ff523e32eab9ec54a3993db8e2a0070a49a490510d8198c7784f44a",
    "signature": "0x5d6a580e40a09d3de086b74b87a824786a80506e321e0346024b24f5bba6bc483c552acc1b3b8193a2d05434e331fc1a29779f41cbb5298691dcd037053f62071c",
    "signer": "0x6eF66a6206A4589bEd5849d15Bc2746C2603b01f",
    "userId": "989336341"
  }
}