{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "381571423",
    "entityType": "User",
    "nonce": "0x3c18fbed7a338b00ef6c73318247d3ef5f4b2d30fff8f0fc8f1d6d1783403cf1",
    "signature": "0x6f0bd1016da9e058740ab491e7a4aa4c0d46d67aad2886f8211fe7d4371c7dea25c2a6d9d5f604096fa9107b7cf9e26fc7dfbfae39a68555c7a220c4092935b41b",
    "signer": "0x8179f47FB821305795B1c3104622239E9D22ec31",
    "userId": "851281403"
  }
}