{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "11687",
    "entityType": "User",
    "nonce": "0x6a0c2d9b6de4a4a5cf440666c8dee44e07e324a78751180f2679237777f30baa",
    "signature": "0x04be2543cb4463a260b2da58b40f1c9070b141547797a36c03ea234762db63a145f8a00db5c6533850127bbe7f9b76a12c7507bf00f4851e40f55679eb26d44d1c",
    "signer": "0xfe73cd4bc8E45c5aC794633336A85475bD51b0f2",
    "userId": "284924323"
  }
}