{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "740043176",
    "entityType": "User",
    "nonce": "0x4329d840205b3055cbbf28029c94dadfbf21b4c792905bc8f9c8e21ce2ca033e",
    "signature": "0x5befcf43b241e8eeacf99dbe0fc728811550f7ee96dda24815484b22af410a567051651bb27a8872bbc1d5b9e0419cf8fb4ed629b8f8784c1b2a51d21580e2451c",
    "signer": "0x8B8D546144907Ec5F076Aed9346C48667762725D",
    "userId": "28791580"
  }
}