{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "49515",
    "entityType": "User",
    "nonce": "0xd6e5c20a8fea7c82b6252b2f35cd46a676c3535f70f02364ea52c6bba73dc240",
    "signature": "0xec5b3d76fc39bf6b2048bee70075e793d57037248d00d5c41404b1e795a9aba04045b9edac3776716f316a12ad9effe4175d1acd2041a23c9b9499fa5946147f1b",
    "signer": "0xE1606Fda4793C81543febFfc652aC7aBB1a33faF",
    "userId": "457856694"
  }
}