{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xa1f733716064e360a3281c0c4048befc859905e64836206bd9e6f86870f38b41",
    "signature": "0xa735efcf6078304b9b594cb6507d67ab8bda17f71c3a4a685b409f0728c102fc227fd37f14f3fb891086789bb376e87f0066c18b1953892ca9194e3d6a0cf85c1b",
    "signer": "0x8F88e9D514081d9abf16d659B2124E0B0554A722",
    "userId": "917469891"
  }
}