{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "887547386",
    "entityType": "User",
    "nonce": "0xf2c08672fea38e5d55caf11b0ed0fbdfb9defd4077fe56c4b84cd5c2e416b2f5",
    "signature": "0x4b20344bd8cea0e30f9e185f5f4794d4d10ffe3fdf3c564dde51ed2ec4ae7c28365c080032f8d4e9c0ece8f21b96cb7c842939d6d5d643a52b6f817cdd262cb01b",
    "signer": "0x3872417aC9CCdc743F396f6d7A6872e91dB934d1",
    "userId": "701379462"
  }
}