{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "90731",
    "entityType": "User",
    "nonce": "0x5c2a8b54266a93c79802098da9107e1ba08112b01eb5209dbd2c595e46872ae7",
    "signature": "0x337a13316244211d67039f92a4769faf32da08c007e650260e6345579ae6e5166ba49ca634d42623367c77d6f57b0ea4150fde914915ef3df62cbe16e6dde4011b",
    "signer": "0x43dA66b40816c8fb9e2B0AA77E0643192169AF14",
    "userId": "636236864"
  }
}