{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "194497",
    "entityType": "User",
    "nonce": "0x04c289a4608b6b7f0614bd35510655fcf27ec34ebc9c5ec55a0bf8e351193901",
    "signature": "0x859dbcbbeb89b1382de7c6e1b2c2963605dca8a6866890a6cfb27770d4c38f0977a3362f793cf30f645766b9842479e4536c6283460e928e478663973ea3d3351c",
    "signer": "0xC965eCf215DC75172bD11e8E1dbE76EDd838886e",
    "userId": "260849"
  }
}